Arrowzoom Acoustic Mineral Wool Thermal Insulation and Room Soundproofing Fiber Waterproof Isolation Roll - KK1157 with Adhesive You've got 100 days to

You've got 100 days to return it

It will help effectively kill standing waves and flutter echoes

or roughly 90% less sound energy entering the room

Blocking noise through a wall requires mass — extra drywall

While they won't block 100% of the noise on their own

Arrowzoom Acoustic Mineral Wool Thermal Insulation and Room Soundproofing Fiber Waterproof Isolation Roll - KK1157 with Adhesive You've got 100 days toBrand New Mineral Wool Insulation Made by Imported High Quality Materials Easy to Install Lightweight Safe for your health Effectively controlling unwanted reverb and echo. Provides clearer, more enjoyable sound Environmentally friendly and sustainable. Wont slump and it will eliminate air gaps increasing thermal performance MULTI FUNCTION Use it in your Home Theaters, Studios or Gaming Room for acoustic treatment Isolation Shield , or in offices as a